高中生物学科的特点是细微、动态、抽象,主要阐述微观世界的结构和运动。采用传统的讲授法,绝大多数同学表现出一种茫然的表情,教师滔滔不绝地讲授,学生默默地听着,课堂气氛沉闷,缺乏生机。在课后的练习中,同样反 High school biology is characterized by subtle, dynamic, abstract, mainly elaborated the structure and movement of the micro-world. The traditional method of teaching, the vast majority of students showed a blank expression, teachers gushing to teach, students silently listening, the classroom atmosphere boring, lack of vitality. In the after-class exercises, the same anti-